Cultivator.



vPATENTED JAN. 2z, 1907. P. W. zAsTRow.

GULTIVATOR.

APPLICATION FILED APB.. 24, 1906.

2 SHEETSTSHEET l.'

. i ?gygur;

l W ITA/E555 5 BY mi No. 841,840. PATBNTED JAN. 2z. 1907.

P. W. zAsTRow.

GULTIVATOR.

APPLIGATION FILED APB.24.1906.

2 SHEETS-'SHEET 2.

UNITED sTATEs PATENT oEEioE.

ritieni-neri w. zfis'iiiow, ,or einiiu'on, iowiip'f'f.` f

l' CULTivAToR.

No. 841,84e. I.

To all zel/1,0m 'Lv may concern 'I Be ity lmown that l, FiuEDnioi-r W. Zas- Titow, a citizen vof the United 'tates,` residing atClarion,` in the county ofjldlright and State of' Iowa, have invented a new -an'd useful Cultivato'r; and I do hereby declare the following to bey a full, clear, and exact descrip-` vtion of the invention, such as will enable apper-v is to provide a device'of this particular character which will partly work the soil in such a manner as to produce a comparatively even surface.V i

Another! object of the invention is to provide rotary cylinders composed of spiders which are journaled upon shafts and have the radial arms thereof connected by cuttinglmives which are disposed upon an angle so as to produce a shearing action upon the earth.

Another object of my invention is to, compose the axle thereof into two horizontal 'oscillating sections which have gear connections with a lever-controlled pinion and by the movement of which the wheel of the machine inay be, thrown quickly around, so as to steer the machine in one direction or the other, as desired.

This invention com rises further objects and combinations of velldments,.which will be hereinafter more fully described, and shown in the accompanying drawings, and the novel features thereof will be pointed out by the appended claims.`

To obtain a full and correct understanding of the details of construction and combinations of features, elei'ncnts, and advantages, reference is to be had to the hereinafter-setforth description and accompanying drawings in connection therewith, wherein.-

Figure l is a longitudinal section through. the machine. Fig. 2 is a top plan'view of the machine. Fig; 3 is a detail view of the Y steering mechanism leaving ofl' the wheels,

the connection of tongue, and the framing of the rotary cylinders. Fig. 4 1s a rear view of the steering mechanism.

Specification of Letters Patent. Awiiaiioniiea Aprii 24, 1906. saai No. 313,494.

.framing 2, V the axle-sections are provided with wheelsv 5,-

.swing vertie ally.

Patented Jani Making renewed reference to the accom-1 panying drawings, wherein similar reference characters indicate'the corresponding parts v in the vseveral illustrations vby figures, 1-v des-A ignates thea-ide, wiiich'comprises a framing 2' for the ,twvo' horizontal oscillating `-aXle-seetions 3,'l which are -pivoted "between the upon which the machine is supported. v

The adjacent ends of theaXle-s'ectionsjare provided with gear-segments 6 which mesh SLS at ,41. v The outer free end's'of* y with a lever-controlled pinion 7,A which is` piveted'betwee'n the framing, as atS, and by the 'movement of the lever `9` of' thefsa'id pinion 'in one direction or the other the wheels .carried by the axle-sections' will be thrown .quicklyv around,v which will of- 'course steery the machine in ,the desired direction.` j'To hold the lever 9 directly atfright;"angles,"to the axle, so as to prevent'thewheel from turning, the said lever is apertured, as at, l0, to receive the angled end of-a'linkll, which fisl pivoted at 127to the' framing, as clearly shown inFig.4 2 of the drawings;

Pivoted `upon the yaxle-sections f' between enlargements 13 are the clips 14, to which the frames 15 yof the rotary cylinders 16 are connected. These clips carrying the frames 15 are pivoted between the enlargements for the purpose of allowing the rotary cylinders to These rotary cylinders comprise shafts 17, which are journaled in the frames 15 and have forged therewith the l spiders 1S, the radial arms 19 of each spider being out of alineinent with one another, so as to dispose the cutting-knives which are connected therewith at such an angle as to produce a shearing action upon the soil, so as to expeditiously facilitate the work of the inachine to a much greater advantage and to also throw soil toward the row of crop.

` Upon the outer end of each shaft of the cylinders is mounted a sprocket 21, over which a sprocket-chain 22 travels, and which chain also travels over sprockets 23, which are fixed to the hubs of the supporting-wheels 5, which wheels when rotated operate the rotary cylinder, as will be clearly understood from the above description with connection to the drawings. The tongue 24 is connected to the IOO framing 2, as at 8 and is braced by the brace- IIO The rear ends of thev brace-bars 25 are connected to the pivots 4 of the axle-sections, as shown in the drawings. To facilitate the raising of the rotary cylinders, a foot-lever 28 is provided,-which is pivoted at 29 to a projecting portion 30 of a plate 3l, which is bolted or otherwise secured tol the tongue of the machine, as shown in Fig. l of the drawings. Formed with the plate 3l are ratchet-teeth 32 to be engaged by the elongated dog 33, which is pivoted at 34 to the foot-lever 2'8 and is provided with a rearwardly-projecting portion 35, which is connected to an operatingrod 36, which has a bearing in a tubular portion 37.01? a'lever 38, which is pivoted to the rearwardly extending brace bar 26. Attached to the frame 15 of the rotary cylinders are chains or cables 39, which also are connected to the foot-lever 2S.

' When pressure is applied upon the end 40 of the foot-lever, causing. the opposite end 4l to rise, thereby also raising the rotary cylinders, and by such movement ol the foot-lever the elongated dog is brought into action by cooperating wi th the 1atchet-teeth,Which will hold the rotary cylinders in raised position,as clearly understood from the. above description' in connection with the drawings.

Having thus fully Adescribed my invention, what is claimed as new and useful by the protection of Letters Patent isl. A' cultivator, having `a frame and axle, supporting-Wheels mounted on said axles, said Wheels also having sprocket wheels,

raising said cutters, a dog lulcrumed on the upper end of said lever. and adapted to engage ratchet-teeth, and a horizontally-disposed hand-operated rod, for releasing said dog. A

3. A cultivator having a. U-shaped axle, with wheels mounted thercom said wheels bcing adapted to actu-ate rotary cutters, a lever for raising and lowering said cutters and haying a dog mounted on the upper end thereot'. a ratchetlate adapted to be engaged by said dog, said ever having a downturncd portion.

and a horizontal portion passing under thc said U-shaped portion ol the axles and adapted to be engaged by the toot, and a rod for releasing said dog. 1

In testimony whereof Iv have hereto aflixed my signature in the presence of two witnesses.

FRIEDRICH W. ZASTROW. Witnesses:

iV W. SIIEPLEE. E. A. ALEXANDER. 

